Lib.rs

Cargo Features

[dependencies]
paho-mqtt-sys = { version = "0.9.0", default-features = false, features = ["bundled", "build_bindgen", "ssl", "vendored-ssl"] }

The build features are:
"bundled" - Use/build the bundled Paho C library.
"build_bindgen" - Use 'bindgen' to regenerate the bindings to the C library.
"ssl" - Enable SSL features and link to the Paho C library that uses SSL.
"vendored-ssl" - Compile and statically link to a copy of OpenSSL.

default = bundled, ssl

These default features are set whenever paho-mqtt-sys is added without default-features = false somewhere in the dependency tree.

bundled default vendored-ssl? = cmake

build_bindgen = bindgen

ssl default vendored-ssl? = openssl-sys

vendored-ssl = bundled, ssl

Enables vendored of openssl-sys

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

openssl-sys ssl vendored-ssl?

bindgen build build_bindgen?

Enables bindgen ^0.64

cmake build bundled